Tool for finishing heads of bottles.



K. A. GODWIN. TOOL POR PINISHING HEADS OF BOTTLES.

APPLICATION IILBD APB. s, 1912.

1,092,569. v Patented Apr. 7, 1914 'Y ATTORNEYS TiniTnn sTaTns TaTnnT onirica.

KIRJ'ATH ABBA GODWIN, OF SALEM, NEW JERSEY;

TOOL FOR FINISI-IING HEADS OF BOTTLES.

Specicaton of Letters Patent.

ratentea apr. t, mia.

Application filed April 8, 1912. Serial N o. 689,151.

consists of means for forming a uniform circumference of the heads.` j

It further consists of means for forming a screw thread on the heads. Y

It further consists of novel means adapted to be actuated `to force the glass into former. j

It further consist-s of other novel features of construction, all as will be hereinafter fully set forth. f

For the purpose of illustrating my invention I have shown in the accompanying drawings one form thereof which is at present preferred by me, since the same has been found in practice to give satisfactory and reliable results, although it is to be under-4 stood that the various instrumentalities of which my` invention consists can be variously arranged and organizedand that my invention is not limited to the precise arrange-` ment and organization of these instrumentalities as herein shown and described.

Figure 1 represents a perspective view of a tool for finishing the necks of bottles embodying my invention. Fig. 2 represents a longitudinal sectional view thereof on an enlarged scale partly broken. Fig. 3 represents a longitudinal sectional view showing certain of the parts in a different position from that shown -in Fig. 2. Fig. 4 represents a sectional View on line mum, Fig. 3. Fig. 5 represents an elevation of a neck of a bottle showing the screw threads and shoulder formed thereonf Fig. 6 represents Va sectional view of the head and neck of a bottle showing an enlargement or shoulder thereon and without-the screw threads.

Similar numerals of reference indicate corresponding parts in the figures.

Referring to the drawings: 1 designates a block or tail-piece to which is adjustably connected in any suitable manner the rod 2, which, as here shown, is provided with threads 3. and 'which passes through a suitf able bore or opening i in the block 1, and to which it is connected by means of the nuts 5 and G. Carried by said rod is a mandrel 7, which, as here shown, is tapering, but which may be of any suitable size or shape, depending upon the opening desired in the bottle.

8 designates a sleeve suitably secured to the rod 2 and carrying the head or plate 9.

10 designates a former of any suitable shape, which is rotatably mounted, as here shown, upon a'y suitable portion Vof the sleeve 8 and -between which are the ball bearings `11,'which are situated in suitable race-ways `which are formed respectively in the head 9 and former 10, it being understood that vthe said former is provided with a suitable face which bears against the end of the mandrel 7, and that the flange 12 of the former 10 encircles the mandrel, or a suit able portion thereof, forming a space 13 therebetween into which the glass is forced. I preferably desire to employ threads upon the inner wall of Asaid flange 12 to provide screw threads upon the heads of the bottles.

14: designates arms pivotally mounted, as here shown upon the block 1, which extend eXteriorly of said former 10, and to which are removably connected the jaws 15 each having a shoulder 16 inwardly facing, that is facing the month of the former.

17 designates springs suitably secured and having portions thereof bearing upon the arms 14 in order to hold the saine in open j or expanded position and to return the same thereto, it being understood and noted more lparticularly from Fig. 3 that the jaws 15 I are situatedat a distance beyond the mouth of said former and on opposite sides thereof and that in their normal or open position they are a greater distance apart than the diameter of the mouth of the former in order to permitfree entrance of the glass into the former, but that when suitably ac- `tuated, they are moved to a position partly .across said mouth as seen in Fig. 2. The

jaws are comparatively wide, and their opposed faces are curved to impart the proper curved outlines to the neck of the revolving bottle and toproperly distribute the plastic glass of the head'and neck. The stationary mandrel supports the neck from within, and

the Arotatable former will rotate with the bottle and allow the shoulders of the jaws,

which are held stationary, to crowd the plastic glass into the former to'impart the desired shape to the head of the bot-tle. I have provided means for normally locking said former 10 against rotation, which locking means are adapted to be actuated at the proper time to release said former to permit rotation thereof, and, as here shown, I have pivotally mounted an elbow lever 18 on the head 9, one arm of which lever is in suitable connection with one of the arms 14 in order to be actuated thereby, while the other arm of the said lever 18 isin suitable connection with a pin 19 which is adapted to engage with one of a plurality of suitable recesses 2O provided in the former 10. As here shown, the pin 19 is movable in a suitable opening in the head 9.

21 designates stops, here shown as set screws, carried by the arms 14 and which are adapted to contact with the edge of the head 9 vin order to limit the inward movement of said arms 14. and so the jaws 15j.

Suitable means is provided for assisting in guiding thearms 14 in their movement, and asV here shown, I have provided a plate 22 suitably connected with thev head 9V and provided with a slot 23 in which the arms 14 move. It will be understood that the inner suitable shape, depending upon the charac,- ter of the neck of the bottle desired.

In the construction shown in Fig. 6, I '3 have shown a bottle with the head plain and with an enlargement o-r shoulder 24 formed thereon, the inner wall of its flange 12 of the former in this case, being without threads and the jaws employed being suitably formed to correspond to the shape of enlargement and of the neck.

The operation of the device will be readily apparent, the jaws and arms being in the position seen in Figs. 1 and 3 and the operator grasping the tool will force the snap or bottle partly formed upon the mandrel tle, and the hot or plastic glass forming the head is directed into the former, whereuponthe operator by actuating the arms 14 and by overcoming the tension of the springs 17 will bring the jaws 15k against the neck of the bottle. At the same time, by the actuation of the arms 14, the lever 18 is rocked on its pivot and removes the pin 18 from engagement with the recess 20 in which it is seated on the former, so that the latter' is free to rotate with the bottle or snap, which rotation is imparted by the operator so that the shoulders 16 of the jaws will force a suitable amount of the hot glass into the space 13 between the mandrel and the flange 12 of the former 10, whereby it will be understood that ajpositive uniformity of the circumference of the finish or head of each bottle is obtained and an enlargement or shoulder 24 is formed. When the former is provided with threads the jaws will act to force the plastic glass not only into the former but also; into the threads thereon, so that the head of the bottle is formed with a shoulder or enlargement 24 and with screw threads 25, while the neck is shaped by the inner faces or walls of the jaws 15, as will be evident. When the operator releases the jaws 14 at the proper time, the springs 17 open or return the jaws 15 to their normalA position, the formerlO is again locked, and the operator can unscrew the bottle from the said former, as will be evident.

It ,will of course be understood that the glass forming the blank or bottle is in suitable plastic condition when the tool above described is applied thereto.

From the above it will be understood that I have provided a tool which is simple ink construction, easy in operation, positive'in `its action and producesl an article which has Vheretofore not been obtained by mechanical face of the jaws 15 may be formed of any I claim as new and desire to secure by Letyters Patent, iszf j Y 1. In a device of the character stated, a lstationary mandrel adapted to contact with :theinner wall of they mouth of the bottle to form. the same, a rotatable head-shaping i former at the inner end of the said mandrel to shape the upper edge of the mouth and jthe locking means on the exterior ofthe Ihead of the bottle,-means adapted to be ac- `:tuated to force the glass into said former, andmeans for normally locking said former fagainst rotation and adapted to: be actuated gto releasesaidk rotatable former,V whenVV said i forcing means isactuated.

7 which thus enters the mouth of the botstationary mandrel adapted tocontact with I the inner wall ofthe mouth of theY bottle to lform the Same, Va rotatable, internally A {threaded former at the inner end of said jmanldrel to shape the upper edge of the gmouth of the bottle and the screw threads on "the exterior of the bottle, `jaws adapted to ,be actuated to force the glass into said former, means for normally holding said jaws in and returning the same to open position, and means for normally locking said ,former against rotation and adapted to be actuated toA release said rotatable former, "when said jaws are actuated.

Having thus described my invention, what 2. In a device of the character stated, a

KIRJ ATH AREA GoDwiN. 'Y

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of '.Patents,

Washington, 13.03 i 

